import openpyxl

@staticmethod
def read_excel(file_name,sheet_name):
    wb = openpyxl.load_workbook(file_name)
    sheet = wb[sheet_name]
    data = [[sheet.cell(row = i, column = j).value for j in range(1, sheet.max_column+1)] for i in range(1, sheet.max_row+1)]
    wb.save(file_name)
    return data

if __name__ == '__main__':
    data = read_excel('test.xlsx','Sheet11')
    for i in data:
        print(i)

